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Trigonometryhard
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If cos⁡(A+B)=0\cos(A+B) = 0cos(A+B)=0 and sin⁡(A−B)=1/2\sin(A-B) = 1/2sin(A−B)=1/2, find sin⁡Acos⁡B\sin A \cos BsinAcosB.